CN111545974A - a welding head - Google Patents

Abstract

A welding indenter belongs to the technical field of stud welding equipment. It is characterized in that: it comprises an indenter main body (21), the bottom of the indenter main body (21) is provided with a hook positioning groove (24) for positioning the hook (18), and one side of the hook positioning groove (24) is provided with a hook for positioning the hook (18). The hook fixing part where the hook (18) is positioned. The upper part of the hook of the welding indenter enters into the hook positioning slot, the hook positioning slot positions the hook, and the two ends of the hook extend out of the hook positioning slot, so as to facilitate the welding of the two ends of the hook and the stud, and the hook fixing part is positioned in the hook positioning slot. The hook is fixed, so as to play a role in the hook, thereby providing conditions for the automatic welding of the hook and the stud, which is convenient to realize the automatic continuous welding of the stud and the hook, the welding quality is stable, and the welding efficiency is high.

Description

a welding head

technical field

A welding indenter belongs to the technical field of stud welding equipment.

Background technique

When the single hydraulic prop is produced, the hook needs to be welded on the stud. Due to the convex arc shape in the middle part of the hook, it is difficult to locate the hook. The existing automatic welding machine cannot meet the positioning and welding of the hook and the stud, resulting in the existing Most of the studs are welded manually, which leads to low welding efficiency between the stud and the hook, and the quality of the welding is greatly affected by the skill level of the workers, and the welding quality is very unstable.

SUMMARY OF THE INVENTION

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a welding indenter capable of positioning the hook and fastening the hook to facilitate the welding of the hook and the stud.

The technical solution adopted by the present invention to solve the technical problem is: the welding indenter is characterized in that it comprises a main body of the indenter, the bottom of the main body of the indenter is provided with a hook positioning groove for positioning the hook, and one side of the hook positioning groove is provided with a hook positioning groove. There is a hook fixing part for positioning the hook.

Preferably, the bottom of the hook positioning groove is provided with a magnet to form the hook fixing portion.

Preferably, the main body of the indenter is vertically arranged cylindrical, and the hook positioning groove is arranged on the end face of the bottom of the main body of the indenter.

Preferably, the hook positioning groove is arranged along the diameter direction of the main body of the indenter.

Preferably, the lower side of the main body of the indenter is provided with a hook fixing block, and two hook fixing blocks are arranged at intervals to form the hook positioning groove.

Preferably, the bottom end of the main body of the indenter is provided with a blind hole, and the hook fixing block is arranged in the blind hole.

Preferably, two sides of the bottom of the main body of the indenter are provided with openings which are matched with the hook positioning grooves.

Preferably, the hook fixing block is in a semi-cylindrical shape with a convex middle part, and the upper part of the hook fixing block is a cone whose diameter gradually decreases from bottom to top.

Compared with the prior art, the present invention has the following beneficial effects:

1. The upper part of the hook of the welding indenter enters the hook positioning slot, the hook positioning slot positions the hook, and the two ends of the hook extend out of the hook positioning slot, so as to facilitate the welding of the two ends of the hook and the stud, and the hook fixing part positions the hook The hook in the groove is fixed, so as to play a role on the hook, thereby providing conditions for the automatic welding of the hook and the stud, and facilitating the automatic continuous welding of the stud and the hook, with stable welding quality and high welding efficiency.

2. The hook is fixed by a magnet, which facilitates the fixing and contact fixing of the hook.

3. The main body of the indenter is cylindrical, and the lower end of the main body of the indenter can extend into the stud, which facilitates the welding of the hook and the stud.

4. The hook positioning groove is arranged along the diameter direction of the main body of the indenter, which can ensure that the hook is arranged along the radial direction of the column head during welding.

5. The hook fixing blocks on both sides are arranged at intervals to form a hook positioning groove. The width of the hook positioning groove can be adjusted by replacing the hook fixing block to adapt to the welding of different types of hooks and studs.

6. The hook fixing block is installed in the blind hole, which facilitates the positioning and fixing of the hook fixing block.

7. The bottom sides of the main body of the indenter are provided with openings matched with the hook positioning grooves, and the two ends of the hooks protrude through the openings on the corresponding sides respectively, so as to prevent the main body of the indenter from hindering the welding of the hooks.

8. The hook fixing block is tapered, which is convenient for the installation of the hook fixing block.

Description of drawings

FIG. 1 is a schematic cross-sectional front view of a welding indenter.

FIG. 2 is a schematic front view of the welding device.

FIG. 3 is a schematic left side view of the welding device.

FIG. 4 is an enlarged view of the device at A in FIG. 3 .

In the figure: 1, frame 2, welding cylinder 3, lifting frame 4, welding pressure head 5, hook feeding device 6, workpiece 7, workpiece clamping plate 8, workpiece advancing cylinder 9, clamping cylinder 10, positioning block 11, welding Rack 12, translation rack 13, hook feeding cylinder 14, silo translation cylinder 15, silo guide rod 16, silo compression spring 17, silo pressure plate 18, hook 19, silo baffle 20, feeding part 21 , Indenter main body 22, hook fixing block 23, magnet 24, hook positioning slot.

Detailed ways

1 to 4 are the preferred embodiments of the present invention, and the present invention will be further described below in conjunction with the accompanying drawings 1 to 4 .

A welding indenter includes a main body 21 of the indenter, the bottom of the main body 21 is provided with a hook positioning groove 24 for positioning the hook 18 , and one side of the hook positioning groove 24 is provided with a hook fixing portion for positioning the hook 18 . The upper part of the hook 18 of the welding indenter enters into the hook positioning groove 24, the hook positioning groove 24 positions the hook 18, and the two ends of the hook 18 protrude from the hook positioning groove 24, so as to facilitate the welding of the two ends of the hook 18 with the stud, the hook The fixing part fixes the hook 18 in the hook positioning groove 24, so as to play a role on the hook 18, thereby providing conditions for the automatic welding of the hook 18 and the stud, facilitating the automatic continuous welding of the stud and the hook 18, and the welding quality Stable and high welding efficiency.

The present invention will be further described below in conjunction with specific embodiments, but those familiar with the art should understand that the detailed description given here in conjunction with the accompanying drawings is for better explanation, and the structure of the present invention must exceed these limited embodiments, However, some equivalent alternatives or common means will not be described in detail herein, but still belong to the protection scope of the present application.

Specifically: as shown in FIG. 1 : the lower end of the indenter main body 21 is coaxially provided with a blind hole, the hook fixing block 22 is arranged in the blind hole, and the hook fixing block 22 has two parallel and spaced blocks, and the two hooks A hook positioning groove 24 is formed between the fixing blocks 22 . A magnet 23 is arranged in the blind hole on the upper side of the hook fixing block 22 to form a hook fixing part, so as to realize the fixing of the hook 18 . The diameter of the main body 21 of the indenter is smaller than the inner diameter of the upper end of the column head, the blind holes are provided with openings matching with the hook positioning grooves 24 on both sides, and the two ends of the hook 18 protrude through the openings on both sides of the main body 21 of the indenter, so as to facilitate the hook 18 Welding with studs.

The lower part of the blind hole is on a cylinder, and the upper part is a cone whose diameter gradually decreases from bottom to top. The hook fixing block 22 is semi-cylindrical, the lower part of the hook fixing block 22 is cylindrical, and the upper part is a cone whose diameter gradually decreases from bottom to top, thereby facilitating the installation of the hook fixing block 22 .

As shown in Figures 2 to 3: the present invention also provides a welding device, comprising a welding indenter 4 and a workpiece fixture, the welding indenter 4 and the workpiece fixture are arranged facing each other, and the welding indenter 4 is provided with a positioning groove 24 for hooking, The hook positioning groove 24 is disposed toward the workpiece fixture, one side of the hook positioning groove 24 is provided with a hook fixing part, and the welding pressure head 4 is connected with a power device that pushes it to reciprocate toward or away from the workpiece fixture. The workpiece fixture of the welding device can position and clamp the stud, the hook positioning groove 24 can position the hook, which facilitates the loading of the hook 18, and the hook fixing part can fix the hook 18 positioned in the hook positioning groove 24. , the power device pushes the welding indenter 4 to move, and completes the welding between the stud and the hook 18, realizing automatic welding, the welding quality is not affected by the operator, and the welding quality is stable.

The welding device also includes a workpiece translation device, a hook feeding device 5 and a frame 1, the power device is installed on the top of the frame 1, the welding indenter 4 is installed on the lower side of the power device, and the welding indenter 4 is connected with the power device. And with the power unit vertical lift. The workpiece fixture is arranged directly below the welding indenter 4, the workpiece fixture is installed on the workpiece translation device, and the workpiece translation device drives the workpiece fixture to move horizontally in the direction of approaching or away from the welding indenter 4, and the adjustment of the position of the workpiece 6 is in this embodiment. , the workpiece 6 is the stud. The stigma is cylindrical. The middle of the hook 18 is an upwardly convex arc shape, and the hook 18 is formed by bending round steel bars.

The power device is a vertically arranged welding cylinder 2, the welding cylinder 2 is arranged vertically, the piston rod of the welding cylinder 2 is set downward, a lifting frame 3 is installed on the piston rod of the welding cylinder 2, and the welding pressure head 4 is arranged on the lifting frame 3. On the lower side, the upper part of the welding indenter 4 is connected with the lifting frame 3 and rises and falls synchronously with the lifting frame 3 .

The workpiece translation device includes a workpiece advancing cylinder 8 and a welding frame 11. The frame 1 is provided with a welding frame guide rail. The welding frame guide rail is horizontally arranged. The welding frame 11 is arranged on the lower side of the welding pressure head 4. On the guide rail, the workpiece pushing cylinder 8 is horizontally installed on the frame 1 , the piston rod of the workpiece pushing cylinder 8 is connected with the welding frame 11 and pushes it to translate, and the workpiece clamping jaw is installed on the upper side of the welding frame 11 . The workpiece translation device can push the workpiece clamping jaws to move, so that the workpiece 6 can be easily removed from the workpiece clamping jaws, a new workpiece 6 can be placed on the workpiece clamping jaws, and the hook 18 can be easily loaded.

The workpiece clamping jaw includes a clamping cylinder 9 and a workpiece clamping plate 7. The workpiece clamping plate 7 is arranged vertically. The workpiece clamping plate 7 has two parallel and spaced pieces. The workpiece clamping plate 7 is slidably installed on the welding frame 11, and the clamping cylinder 9 is installed in the welding frame. On the frame 11 , the clamping cylinder 9 is connected with the two workpiece clamping plates 7 and pushes the two workpiece clamping plates 7 to move in opposite directions synchronously, thereby realizing the clamping of the workpiece 6 and the centering of the workpiece 6 .

The upper end of each workpiece clamping plate 7 is provided with a positioning block 10. The positioning block 10 is arranged between the two workpiece clamping plates 7. The positioning block 10 is an arc-shaped groove with a concave middle part, and the grooves of the two positioning blocks 10 are enclosed in a circle. The shape of the clamping part can not only realize the clamping of the workpiece 6, but also realize the positioning of the workpiece 6, and ensure that the workpiece 6 and the hook on the welding indenter 4 are aligned. The positioning block 10 is supported by a conductive material. In this embodiment, the positioning block 10 is made of copper. The positioning block 10 and the welding indenter 4 are respectively connected to the two poles of the power supply, thereby realizing the welding of the stud and the hook 18 .

As shown in Figure 4: the hook feeding device 5 includes a hook silo and a pushing device, the hook silo is arranged between the welding pressure head 4 and the pushing device, and one side of the hook silo is provided with a hook for pressing the hook close to the pushing device. Pressing part on one side of the device. The pushing device pushes the hook 18 into the hook positioning groove 24 to realize automatic feeding, and the pressing part always presses the hook 18 on the side of the hook silo close to the pushing device, thereby realizing the continuous feeding of the hook 18 .

The hook feeding device 5 also includes a silo translation device. The silo translation device is installed on the frame 1. The hook silo is installed on the silo translation device and moves horizontally with the silo translation device. The silo translation device is translated with the workpiece. The moving direction of the device is set vertically. The pushing device is installed on the silo translation device, the hook silo is arranged between the welding indenter 4 and the pushing device, and the pushing device is used to push the hooks 18 in the hook silo to the welding indenter 4 one by one.

The silo translation device includes a silo translation cylinder 14 and a translation frame 12. A silo translation guide rail is installed on the rack 1, the silo translation guide rail is horizontally arranged, the translation frame 12 is slidably installed on the silo translation guide rail, and the silo translation cylinder 14 is installed On the frame 1, the piston rod of the silo translation cylinder 14 is connected with the translation frame 12, and pushes it to translate.

The upper side of the translation frame 12 is provided with a silo baffle 17 and a silo baffle 19. The silo baffle 19 and the silo baffle 17 are both arranged vertically, and the silo baffle 19 is arranged on the side of the translation frame 12 close to the welding indenter 4 , the silo pressing plate 17 is slidably arranged on the translation frame 12, the silo pressing plate 17 is arranged opposite to the silo baffle 19, and the two sides of the silo baffle 19 are provided with blocking rods, thereby forming a hook silo, the blocking rod and the translation The racks 12 are arranged at intervals, and both ends of the hook 18 are arranged on the lower side of the blocking rod, and the hook 18 is guided by the blocking rod. The translation frame 12 is provided with a silo compression spring 16, the silo compression spring 16 is in a compressed state, one end of the silo compression spring 16 is supported on the translation frame 12, and the other end pushes the silo pressure plate 17 to be close to the silo baffle 19. It moves in the direction of the silo, so that the hook 18 always presses the baffle plate 19 of the silo, which facilitates the continuous feeding of the hook 18.

A silo guide rod 15 is provided on the side of the silo pressing plate 17 away from the silo baffle plate 19. One end of the silo guide rod 15 is fixedly connected with the silo pressing plate 17, and moves synchronously with the silo pressing plate 17, and the other end slides with the translation frame 12. Connected, the silo pressing spring 16 is sleeved on the outside of the silo guide rod 15, so as to prevent the silo pressing spring 16 from bending and affecting the movement of the silo pressing plate 17 pushed by it.

The push mechanism includes a hook feeding cylinder 13 and a feeding member 20. The hook feeding cylinder 13 is vertically installed on the translation frame 12, the piston rod of the hook feeding cylinder 13 is set upward, and the feeding member 20 is installed on the hook feeding cylinder. The thickness of the feeding member 20 is equal to or smaller than the diameter of the steel bar of the hook 18, so that the hooks 18 can be pushed into the hook positioning groove 24 one by one.

The working method of the welding device is as follows: first, the hook 18 is placed in the hook silo, the silo pressing spring 16 pushes the silo pressing plate 17 to press the hook 18 on the silo baffle 19, and then the silo translation cylinder 14 pushes The translation frame 12 moves so that the feeding member 20 is located directly below the hook positioning groove 24. At this time, the hook feeding cylinder 13 moves upward, and the feeding member 20 pushes the hook 18 on the side close to the silo pressure plate 17 upwards. And make it enter the hook positioning groove 24 to complete the feeding of the hook 18. At this time, the hook feeding cylinder 13 is reset, and the silo pressing spring 16 pushes the hook 18 through the silo pressing plate 17 to press the silo baffle 19 again. , the silo translation cylinder 14 is reset.

The workpiece 6 is placed on the welding frame 11, the clamping cylinder 9 pushes the two workpiece clamping plates 7 to move inward synchronously, positioning and clamping the workpiece 6, and then the workpiece pushing cylinder 8 pushes the welding frame 11 to move to the lower side of the welding indenter 4, and Align the hook 18 on the welding indenter 4 with the workpiece 6 on the welding frame 11 .

The welding cylinder 2 pushes the welding indenter 4 to move down, and makes the hook 18 contact the workpiece 6. After the welding is completed, the welding cylinder 2 drives the welding indenter 4 to move up, the hook 18 is separated from the suction force of the magnet 23, and the workpiece 6 and the hook are completed. 18 welding.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications to equivalent changes. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still belong to the protection scope of the technical solutions of the present invention.

Claims (8)

1. A welding indenter, characterized in that it comprises an indenter main body (21), the bottom of the indenter main body (21) is provided with a hook positioning groove (24) for positioning the hook (18), the hook positioning groove (24) ) is provided with a hook fixing part for positioning the hook (18). 2 . The welding indenter according to claim 1 , wherein a magnet ( 23 ) is arranged at the bottom of the hook positioning groove ( 24 ) to form the hook fixing portion. 3 . 3. The welding indenter according to claim 1, wherein the main body (21) of the indenter is vertically arranged cylindrical, and the hook positioning groove (24) is arranged at the bottom of the main body (21) of the indenter. end face. 4 . The welding indenter according to claim 3 , wherein the hook positioning groove ( 24 ) is arranged along the diameter direction of the indenter main body ( 21 ). 5 . 5. The welding indenter according to claim 1, characterized in that: the lower side of the indenter main body (21) is provided with a hook fixing block (22), and the hook fixing block (22) is provided with two pieces at intervals, The hook positioning groove (24) is formed. 6 . The welding indenter according to claim 5 , wherein a blind hole is provided at the bottom end of the indenter main body ( 21 ), and the hook fixing block ( 22 ) is arranged in the blind hole. 7 . 7 . The welding indenter according to claim 6 , wherein openings matched with the hook positioning grooves ( 24 ) are provided on both sides of the bottom of the indenter main body ( 21 ). 8 . 8 . The welding indenter according to claim 5 , wherein the hook fixing block ( 22 ) has a semi-cylindrical shape with a convex middle, and the upper part of the hook fixing block ( 22 ) has a diameter that gradually decreases from bottom to top. 9 . small cone.

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